Reversible window.



P. BARNUM. REVERSIBLE WINDOW. APPLlcATloN men Nov. l1. 191

Patented Mar. 21, 1916.

UNITED STATES ,PATENT OFFICE.

PAUL BARNUM, oF SAN FRANcFIsCo, CALIFORNIA, AssiGNoRoF oNE-HALF To DONALD i H. MCCORKLE, oF BERKELEY, CALIFORNIA.

REVERSIBLE WINDOW.

To all 'iv/tom t may concern.' u Be it known thatv I, P AUL BA'izNUMtacitizen of the United States, residing in the vcity land county of Sain Francisco and State ofggfalifornia, have invented; new and useful -Iinprovent-lgnts. inA lieve'rsiblerv Windows, of which the'following is a specification.l It'is one of theobjects of .this invention to provide asiinple, "substantial and inexpensive reversible window' structure.

'A f uither .object is to construct awindow =of tlieyieveijsible type which will provide againstacidental reversal ofthe sash while it is being cleaned 'and thus provide for Athe safety' of persons unaware of its 'reversible character.'v j:

In reversible window sashes as heretofore constructed it lis' customary, when the sash `is a sliding one, to mount the stiles between the slices arranged tot inthe usual slides in the window frame, the sash beingifmounb ed on pivotsv or -trunnions between theshoes sothatjit may swing freely aboutits axis or it may be movedvertic'allyin the window .frame slides. Heretofo're'. the stile vliaisrlzgeen .held in normal alneinent-witht .'fsorne spring pressed o'r manna means operating uniformly. the length of the stile, either 'operated automatically by pressure on the sash or maiially by operating a button or latch. 'lliiis'always necessitated a space to receive the yielding.

means the full length of thefsash on either side and usually lefttheisash loosein the frame when the In the present instance 'Il have combined the features ,.-of \.veathei p roof,v yielding, spring-pressed meanswithf a flexing move ment ofthe shoe, lea-ving the sash at all times' tight linthe frame butindependent .of any coperfaton astofthe spring pres sure between the frame and shoe.;

The .invention consists of4v the parts and the construction and combination of parts as hereinafter. more ffully. described and claimed, having`'ference to the accompany- 3 ing drawings, in which Figure 1 is a section inf through the window frame, showing the glazed sashes intilted position. Fig. 2 is a side elevation of the Vright side of a window partially broken away. Fig. 3 is a detail horizontal section "of the sash stile and its shoe before assembly. Fig. is a horia vertical plane Specification of Letters *Patente yielding Vmeansv was in iontal detail section ofthe assembled stile, I'

with sashways 3.

i Patented 1uai-.21,1916. l `Application filed November 17, 1914. Serial No. 872,564. 'I

2 represents a window'f'framestructure. a

4 4' indicate upper-"andgflower .glazed sashes, the sideedges-of which are `p`rovided with straight, concaved grooves or seats'5 in which is-adapted vto spring'and bear the ribbed surface 'of av'strip 6. tei-ined the shoe, of which'there is one .for each' side of a s'ash 4 and whichrunin the sasha ways 3. The shoe -6` i`s of uniform-thickness from end to endealipering/alongvthe ridge l of the longitudinal, half-.round rib'j'? whichA is formed by running a cutter along the one.

side of the shoe while this ,is bowed "outthat when again released `and in anormal y state, the ridge of the lrib and the back of wardly toward the .path ofthe cutter so the shoe are straight and parallel;z 'Thesurasf face on which the rib is formed is dishedf .Y

or concaved from the `ends Sto, the jcenter, thus leaving the rib. highest at the centernand with the ends'.

gradually thinning out toward-.and flush Referring to Fig. 2, wh enja shoe isi-placed j against a sidev of av sash4 4. and sprungup against it by a pivot screw 8, the `ribv is forced into the curve'dseat 5 andthe cncaved surface straightened out .againstthe edge of the sash, thus bowing the shoe 6, as clearly shown, so that only its extreme. ends straight and parallel With the frame stile,95 i asinFig.5.. '5i- Under the head .of eaclipivot screwi'S is Ya spiral conical spring 9 seating agzpi'instawasher 10v in a pocket l1 in the sashshoe` 6., The screwA passes through the shoe and jams 100 in a non-turnable washeip12 in a pocket 13?.

of the sash stile. The screw cQmpSeS the-= spring 9 which in turn bowsthe shoe-S0 l that its concaved face bears against the a'd.

jacent face of the stile. and' the taperingdo key part or rib 7 rests i the seat'5. When the sash is tilted about t e trunnion screws, the ribs ride out of the seats and flex the shoes outwar lly at the center and compress the springs 9.

For -tlie protection of window cleaners socket/sl?) at suitable locations in the fixed'l window frame 2 can the' sashes be tilted,"as any attempt to swing the sashogausesw he wedges T. to expand the shoeas-,and forcey he buttons 14 against the adjaentalsurfaces of the window frame., If, under a. driving wind, anyxovgaterdsiould enter the crevice betiveggrgale Vshoev and the sash it would collect m channels or ducts lalong the Wedge iirbs 7 and drain down. By jammingthe screws in the non-turn 'able washers 12 they are held against turn ingunder the friction of the ing 9. These springs are preferably coni al for'the reason that they mayy becompressed to the thickness of the '-ir'e'd thus are economical of spahcg/Tlxcontiguoussurfaces of the 'sash and shoes are paraflined or otherwise treated for their preservation and also'to reduce friction. v

W'hen the sash is set in the window frame, the shoes engage the casing at four corners only, forming a much better andrfreer bearing for raising and-lowering than if the shoes touched throughout their length. "l'nthe sash is reversed or tilted the shoe flexes at the center against the pressure of vthe conical spring.v The shoe ends have no movement,4 the shoe -merely straightening out and the stile is free to clear the shoe the full length of thesash.

Having thus described my invention, what I claim' and desire to secure b v Letters Patent is-- N1.. In. a struhcture of tliecharacterde-L scribedea wiiii'dow frame having slash guides, a` 'having a groove fo in one edge thereof. and a shoe pivoted to the grooved edge of the a sas g i( eof thev window frame, the shoe havingfa Arib; decreasingI inV thickness from its center .toward its ends 4and trictionally interlocking vwiththe sashgroove to permit of tlifsash swinging on its pivot.

2. Inma structure 4of the character described, a window. frame having Sash guides, a sash having a groove forid in nne thereof, and a slme/nifvod to the sash and having arritrwv ich decreases in thickness from its center to its ends interlocking in the sash groove, said Ashoe beingr bowed toward the sash,A when inter-locked therewith andbearing at its ends against the frame, and meansrfor bowing the shoe.

3. In a structure g of the character described, a rwindow frame having sash guides, a sash having a groove formed in one edge therf, and a shoe pivoted to the sash and ash and slidably engaged in having a rib which decreases in thickness from its center to its endsinterlocking in the sash groove, said shoe being bowed.

-opposite face of the shoe,z and yieldable meansv for springing *the shoe t0 vinterlock the rib in the sash groove.` i

5. A structure of `theocharacter described 'comprising a window -frameh'a-ving a guide, a sash, a flexible bowed ShOeslidabIe in the guide of the frame and A'supporting'the sash for relative movement -wheiebythe shoe shoe in free relation to the frame-and adapt;V .Y ed to engage the latter 'toflockl the shoeVV thereto on flexing the latter kby relative movementv between the sash and sheenr` 6. A structure of lthe character describedv comprising a window frame having ,a formed with an-opening,l a-shoe operablennf-l the frame guide and bwedcentrally ,there-0 from', a lock carried by the .bowed portion-951 'of the shoe and adapted to kengage' Iin; the 'opening ot' the frame guide to retain the shoe from movement, and a sashopivoted to the shoe for swinging movement Aand-prof vided with meansv whereby the lShoejivill be.

flattened on: such ti'novement5to'` moveA the lock in the .frame guide` opening.-

7. The combination ,with a. mountedsash and its guideframe, of means upon which the sasli'is pivoted, bowed So L.thatits ends bear on the frame' and'o'rin an winch sa`il\sash\ and by which the\"'sash is prevented fromiltmgotion y except at apredeterliiined position a`s`to.

the frame; said Imea-ns including avtlexible part with a concav'ed face having a projection in close juxtaposition to a surface of said way and which is operative by and upon a tilting action of the sash to abut the surface andso prevent further tiltin motion, said frame having a socket for'sai siiziibiy i intermediate segmental space, 1 and; whose'V i ll 5 l projection into"l which it enters when it is desired to allow the tilting of the sash.

9. In a window structure, a sash and its surface of the guide while the shoe is dshed guide frame, a pivot non-turnably secured but operative to abut the same and prevent in said sash, a lateral shoe, mounted upon tilting of the Window except when the prosaid pivot running in said frame and re vjeeton is '1n ahnement lwith the pocket. Silently dshed toward the pivot and sash. In testimony whereof I have hereunto Set cooperative means on said shoe and the my hand in 'the presence of two subscribing sash whereby when the lat-ter is tilted the Wtnefesos.

shoe is bent back into the guide frame, and PAUL BARNUM. a projection on the side of the shoe toward Witnesses: the guide frame, the latter having a pocket, VV'. W. HEALEY,

Said projection being disengaged from the M. E. EWING. 

